test
node1
GO:0032501
multicellular
organismal process
node2
GO:0003008
system process
node1->node2
node5
GO:0007588
excretion
node2->node5
node6
GO:0003014
renal system process
node2->node6
node3
GO:0097254
renal tubular
secretion
node4
GO:0097744
renal urate salt
excretion
node3->node4
node5->node3
node6->node3
node7
GO:0008150
biological_process
node7->node1
node8
BFO:0000003
occurrent
node8->node8
node9
BFO:0000015
process
node8->node9
node9->node7
node10
BFO:0000001
entity
node10->node8